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Native Silver With Acanthite Pearceite & Baryte

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PPM1085822

Description Tabs

Description
Locality: 
Aspen, Pitkin County, Colorado, United States of America
Class: 
Mixed Specimens
Size Range: 
Small cabinet (7-10 cm)
Size: 
5 × 7 × 0.9 cm
Weight: 
62.00gr
Description

Rare ore specimen from the famous Aspen Mining District in central Colorado, showing pearceite, acanthite, and native silver in barite matrix. Silver ore specimens from Aspen are exceptionally hard to come by these days it seems compared to other 'classic' Western American localities. 

Mineral Data
What's on the rock

Silver

Formula: 
Ag
Strunz: 
1.AA.05
Crystal System: 
Isometric
Hardness: 
2.5 - 3.0

Acanthite

Formula: 
Ag2S
Strunz: 
2.BA.35
Crystal System: 
Monoclinic - Prismatic
Hardness: 
2.0 - 2.5
Streak: 
lead grey
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Pearceite

Formula: 
[(Ag,Cu)6(As,Sb)2S7][Ag9CuS4]
Strunz: 
2.GB.15
Hardness: 
2.5 - 3.0
Streak: 
black
Type Locality: 
Mollie Gibson Mine (Molly Gibson Mine), Aspen, Aspen District (Roaring Fork District), Pitkin Co., Colorado, USA

Baryte

Formula: 
BaSO4
Strunz: 
7.AD.35
Hardness: 
3.0 - 3.5
Streak: 
White

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